Composition of matter.



-while in this state so WILLIAM H. TEIRASH, OF COLUMBIB, OHIO.

"conosrrron or mrrnnl Specification of Letters Patent.

v Patented April 7, 1908.

Application m June 17, 1901. SeriaLNo. 879,856.

To all whom it may concern.

Be it known that I, WILLIAM H. THIRASH, a citizen of the UnitedStates,residing at Columbus, State of Ohio, have invented certain newand useful Improvements in Composition of Matter, of which the followingis a specification. My invention relates to a composition 'of matter,more articularly to a com osition of matter whic may beused as a sustitute for metal, wood, or other materials. It is lbilglhter thanmetal, and possesses its duraty and qualities of resistance, and at thesame time is of such consistency as to receive a screw or a nail in themanner of wood. It

is also specially ada ted for use as a brakes oe, as 1t is particu arlyfitted to generate a wheel," and at the same time wears long in thatkind of service.

My composition consists of the following ingredients combined inapproximately the proportions stated, namely:

Portland cement 1 lb. Asbestos 1 Graphite 1 oz.. Sugar- 1 Coal dust 1lb. Pumicestone 1 Soap-stone 1' Animalblood 1 lb. Gallotannic acid'- oz.Lava 1 lb. Carbolic acid 3 drops. Oreosote 3 drops.

In combining the elements enumerated .to

the animal esh and is agitated as not to become a fibrous or solid body;sugar is added to the blood and stirred into it, and this mxiture isroduce the desired comlposition, lood obtained when then placed over aslowheat and caused to,

simmer until the mixture becomes thick and viscous. Coal and Portlandcementin'approximately the .proportions'above stated are mixed with theblood and sugar, and themass is heated by steam heat, and thereuponforms 'a thick and viscous composition. In stead of Portland cement,asbestos might be used and a satisfacto com osition roduced.Itisunderstoo that t e coal be ground before being put into thecomposition, and when umice stone orsoa stone is used, it Willi in thecounty of Franklin and" .is the lifeiof the wheel pro e also finelygroun closely. binding the other ingredients together and forming aharder as well as a smoother surface for the composition; it operates toroduce this efiect by filling the pores or voi sinthe com osition andhardens the bod so that it may e' capable of resisting an absorbing a.severe shock thereto. The hardening efit'ect produced by the graphitedoes not impart brittleness to the com osition.

T e oflice of the gallotannic acidis to ive to the composition a waterproof quaIity, inasmuch as when-the acid is added to the graphite ittends to form an oil mixture;

mix said acid with the blood an sugar and stir the same before any otheringredients are put in. The Portland cement ismixed with the ground coaland. is used. as a drier and hardener and roduces this'efiect moreuickly than if as estosand coal are used.

he asbestos gives to the composition a fibrouslt'e'xture.

The use of a composition of matter containing blood under conditions offriction where .heat is generated, is'attended by aver ofl'ensive odor;this renders its use for bra e shoes almost prohibitive, unless the odorcan be overcome. As Icontemplate the use ofmy composition chiefly forbrake Graphite is used for the purpose of more shoes, I have overcomethis objection by the 7 use of carbolic acid or creosote; either ofthese ingredients mixed in about the tions above mentioned will efiectua1y de stroy the odor, and render the composition entirelyunobjectionable for such use. I have found that pumice stone or soapstone, finely ground may be used to the same effect as the coal. y Ihave conducted many experiments and have made many tests with thecomposition offmatter made up of the above mentioned elements and inabout the proportions above stated, the ingredients being grouped asappears in the appended claims; or brakeshoes especially the compositionis highly satisfacto not only in checking the car more quic y than theiron shoe but also in causing less deterioration of the wheel. The lifeof the wheel when the brake-shoe is usedtherewith formed of. mycomposition of matroporter, is substantially one-third lon er than otonl onged, but the l' e of the brake-shoe is much longer than that ofthe iron or steel shoe. Furthermore, a brake when an iron brake isemployed.

shoe made of my compositionis much cheaper than a metallic shoe.

In the following claims wherever coal is introduced as an ingredient,there may be sub.- 5 stituted-therefor either pumiee stone, soa

stone or lava; and where carbolic acid is use creosote may besubstituted therefor. What I claim is: 1. A com osition of matter comrising 1 animal bloo Portland cement, ash

coal, and graphite.

2. A composition of matter comprising estos;

animal blood, Portland cement, asbestos, coal, graphite, and sugar.

" 3. comgosition'of matter com rising 15 animal bloo Portland cement, asestos,

- coal, graphite, sugar, gallotannic acid and carbolic acid.

In testimony whereof I afiix my signature in the presence of twowitnesses. f

. WILLIAMv H. THRASH. Witnesses: Gino.- W. WIGHTMIN,

' WILLIAM B. Goonwm.

